A new method for avoiding the truncation error in near-field antennas measurements

被引:47
作者
Bucci, Ovidio Mario [1 ]
Migliore, Marco Donald
机构
[1] Univ Naples Federico II, Dipartimento Ingn Elettron & Telecomunicazioni, I-80125 Naples, Italy
[2] Univ Cassino, Dipartimento Automaz Elettromagnet Informaz Matem, I-03043 Cassino, Italy
关键词
antenna measurement; near-field far-field transformation; truncation error;
D O I
10.1109/TAP.2006.882151
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new method to avoid the truncation error in antenna near-field measurements is presented. The approach relies on the concept of information content of the field. According to this point of view, the truncation problem is solved by picking up the information that is lost due to the finite size of scanning area, in points of the space reachable by the measurement system. The method can be applied to any scanning geometry, including the planar and cylindrical ones, whenever the set-up allows to vary the distance between the antenna under test and the probe during the scanning procedure. Application of the method to cylindrical near-field scanning is numerically investigated, assessing the effectiveness of the proposed technique.
引用
收藏
页码:2940 / 2952
页数:13
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